For this part I decided to place the Ice Arrow in Stone Tower Temple but I wanted to add a bit more of a challenge to it rather than just all the clues leading straight to the dungeon. The main entrance is blocked off by a gate which require four switches to be activated to open it. The switches are hidden around the exterior of the temple.
Initially some players, namely speedrunners, might be a little confused. Visually the temple doesn't appear to really be blocked off as there's a huge opening above the gate I added in. Originally I had additional gates completely blocking the whole thing. So you might be wondering why did I remove them and only keep the lower ones? Well unfortunately for me Stone Tower is one of the areas that actually uses quite a lot of the object space the game has available to it. Which is also why it's one of the more laggy areas in the game when a lot of stuff is on screen. Adding in one gate basically put it to the limit. So trying to have more would make it run out of space and thus none of the gates could load leaving the entrance completely open.
So is all hope lost??? At first I thought so but then I came up with a clever plan. Why not just edit the collision and block it off like that? Well that's exactly what I did! Editing the collision isn't too hard to do. Each collision triangle has three vertices that are just points in 3D space and the triangle itself has a distance from the map's origin. The texture mesh and collision mesh are separate however and editing the textures is not something I really tried to edit because I don't know how all the data for it works. Below are some images showing the collision triangles. As you will see not only is the entrance blocked off, but I also decided to box in the entire loading zone to prevent players from just trying to go around the gate and actually needing to open it.